✅ Significantly Boosts Your Fuel Mileage - Just Add 1 Ounce Ethos FR+ per 7.5 Gallons. ✅ Doubles Your Engine’s Oil Life - Just Add 1 Ounce Ethos FR per Quart of Engine Oil. If you prefer using Green Products, running Ethos FR+ and Ethos FR reduces your carbon footprint by reducing your emissions, increasing your fuel mileage and cutting your engine oil use in half.
